Hello. My Nikon 18-105 mm 3.5-5.6G ED slipped out of my hand and fell and hit my desk. I no longer own an F-mount camera and was actually about to sell this on eBay. It now makes a slight rattle sound, coming from the rear of the lens, like something inside there is no longer attached or aligned. Beginner shooter here. I went online to Nikon for a repair, about $200+, and a used lens sells for less than the repair. This lens was barely used, and never outdoors. Is there a way I could fix this myself, or are there folks out there that buy these when it is a simple fix?